Gas-furnace



(No Model.)

B. S. FRANZ. GAS FURNACE.

' No. 407,289. Patented July 16,- 1889. 9

N. PUERS, Pholo-Liflmgnphen Wishingfun. D. C

UNITED STATES PATENT OFFICE.

ROBERT S. FRANZ, OF GLENSHAVV, PENNSYLVANIA.

GAS-FURNACE.

SPECIFICATION forming part of Letters Patent No. 407,289, dated July 16, 1889. Application filed May 31, 1888. Serial No. 275,669. (No model.)

To all whom, it may concern:

Be it known that 1, ROBERT S. FRANZ, a citizen of the United States, residing at Glenshaw, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Gas-Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanyingdrawin gs, which form a partof this specification.

My invention relates to improvements in gas-furnaces; and it consists of the peculiar construction and arrangement of parts, as will be hereinafter fully described and claimed.

Figure 1 is a sectional elevation of the combustion chamber of an ordinary upright boiler, showing a means for distributing the gas in accordance with my invention. Fig. 2 is a sectional plan view through the combustion-chamber of the same. Fig. 3 is a perspective View of the obstruction placed over each of the gas-inlet ports. Fig. at is a perspective View of the end of one of the gas-inlet ports.

To put my invention into practice with an ordinary steam-boiler, I provide a metallic shelf a and secure the same in a horizontal position in the fire-chamber b at a suitable distance below the tubes 0 of the boiler. On the top of this plate a, I place athick coat of fire-clay or other suitable refractory material d, which prevents the same from warping. Through this plate a and its refractory covering dare four circular openings 6, through which project the discharge ends g of a gas -burner consisting of four diverging branches h, leading from the service or gasinlet pipe 2'. Each discharge end of this burner is fitted with a cap having a small opening or perforation formed or drilled through the same. The circular openings 6 through the plate a and covering (1 are larger in diameter than the. ends of the burner, therefore leaving a space which serves to admit air to the combustion-chamber b. Directly above each of the four discharge ends g of the burner is placed a refractory tile Z, supported by two similar tiles on, placed in a vertical position at either side of the circular openings 6. A valve arranged at a suitable point on the service-pipe serves as a means for regulating and controlling the supply of gas discharged from the burner.

\Vhen gas is introduced in the above-described manner into a combustion-chamber of any construction, a much better combustion is obtained. The gas being brought violently against an obstruction placed opposite and at right angles to the direction of its entrance distributes itself more widely and evenly throughout the fire-chamber, therefore having a better opportunity of being consumed.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is

In a furnace, the combination of a fixed horizontal partition a, located in the combustion-chamber and having a refractory lining d and a series of openings which extend through said lining and the partition, the vertical inlet-pipes h of less diameter than the openings 6 through which they are passed to provide intermediate air-spaces for air to pass through said openings into the combustionchamber, the fixed caps on the upper extremities of said inlet-pipes and having the contracted central discharge-openings, the horizontal deflecting-plates Z, one arranged above each of the caps at right angles to the path of the gas issuing from the discharge-opening thereof, and the spaced tiles m, resting on the lining d beneath the ends of the deflectingplate and leaving wide spaces between themselves for the free escape of the gas impinging against said deflecting-plates, substantially as described. I

In testimony that I claim the foregoing I hereunto affix my signature this 10th day of March, A. D. 1888.

ROBERT S. FRANZ.

In presence of- O. 0. LEE, M. E. HARRISON. 

